In effect since July 2012, the legislation eliminates nearly all 4-foot T12 lamps, some 4-foot T8 lamps, most 8-foot T12 lamps, and almost all standard halogen PAR38, PAR30 and PAR20 lamps from the market. T12 technology is over 80 years old. Since that time, lamps and bulbs have been developed that just work better.
What does T12 mean in fluorescent bulbs?
A T12 lamp (on the left in the figure below) is therefore twelve-eighths of an inch, or one-and-one-half inches (3.81 cm), in diameter. A T8 lamp (on the right in the figure below) is eight-eighths of an inch, or one inch (2.54 cm), in diameter.
What lengths do T12 bulbs come in?
Common tube ratings
| Tube diameter in 1⁄8 in (3.175 mm) | Nominal length | Nominal power (W) |
|---|---|---|
| T12 | 4 ft (1,219 mm) | 40 |
| T12 | 5 ft (1,524 mm) | 65, 80 |
| T12 | 6 ft (1,829 mm) | 75, 85 |
| T12 | 8 ft (2,438 mm) | 125 |
Why can I still buy T12 bulbs?
These light fixtures were probably no longer made, and were in need of being changed or upgraded. T12 linear fluorescent lamps happen to be one of those bulbs. In response, Congress made legislation stating that T12 linear fluorescents and other inefficient lighting technologies would no longer be manufactured.
Will a T5 bulb fit in a T12 fixture?
For some applications, one T5 bulb can replace two T12 bulbs, providing even greater energy savings (a process called “de-lamping.”) The typical T12 four-lamp fixture uses 172 watts of power between the lamps and ballast.
Can T8 replace T12?
The easiest and lowest price option to replace a T12 is a T8 linear fluorescent. They have become the go-to option for pre-existing T12s. If you still have magnetic ballasts, switching to a T8 will require a ballast swap.
Can I use electronic ballast on T12?
Have you tried to order T12 fluorescent tubes lately? While we still have plenty in stock in our online store, manufacturers are producing less overall. The product has also changed. These days, most T12s will work with an electronic ballast instead of a magnetic ballast.
What is the difference between T12 and T8 fluorescent bulbs?
The T8 light bulb puts out a little bit more light than the T12 light bulb, but once again, the difference is incredibly small. Light output is measured in lumens, and the T8 bulb producers approximately 2600 lumens, while the T12 bulb produces approximately 2520 lumens.
The T12 is an older generation fluorescent bulb that generates light through electromagnetic induction , which is considered less efficient method of creating light compared to that of newer electronic based circuits. However, what sets T5 fluorescent lights apart from T8 bulbs is their dramatic reduction in size.
How many lumens in a 4 foot fluorescent bulb?
The lamp has an initial lumen output of 3,200 lumens and an average life of 20,000 hours. Keeping this in view, how many lumens does a 4 foot fluorescent bulb produce? Day 1 – You have a 4 bulb fluorescent fixture @ 2850 lumens per bulb netting 11,400 lumens .
Are fluorescent T12 lamps banned?
The new DOE laws regarding T12 lamps bring into effect a ban on the manufacturing of T12 fluorescent lamps. The laws imply that after July 14 th, 2012, lamp manufacturers will not be able to manufacture T12 lamps. Retailers and distributors will also not be able to import these lamps from off-shore manufacturers and sell them in the United States.
